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Questions tagged [battery-life]

Questions about Battery life (how long each charge last) or/and Battery Durability (how long until it needs to be replaced) should use this tag.

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194 votes
22 answers
111k views

What can I do to increase battery life on my Android device?

What can I do to get better battery life on my Droid? Battery life seems awful. Less than 15 hours or so on normal usage.
287 votes
6 answers
80k views

Does constant charging harm my Android cellphone?

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics ...
mafu's user avatar
  • 2,971
40 votes
4 answers
48k views

How to deal with (orphaned) WakeLocks?

I guess most of you at least have heard about WakeLocks. Many of you will have experienced them already -- wether knowingly or not. Some may know how to deal with them in general -- but only few know ...
Izzy's user avatar
  • 91.2k
73 votes
1 answer
329k views

What is *Cell standby* and how can I keep it from eating my battery?

Looking up my battery statistics, I almost always find Cell standby amongst the top consumers: I never thought that "idle" would use so much energy. I saw that other people encounter similar problems:...
Izzy's user avatar
  • 91.2k
20 votes
3 answers
17k views

Ideal charging / discharging percentage for maximum battery life?

One of my friends has a relatively new Samsung smartphone. He has this app that notifies him whenever the charging is up to 80%, and tells him to unplug the charger. He tells me that it will increase ...
Fiksdal's user avatar
  • 1,241
32 votes
2 answers
14k views

Don't charge the battery but use connected power to run the phone

Answers to this question Is power consumed from battery to run the phone when charging? explain how charging while phone is in use does both - charging the battery and powering the on going activities....
beeshyams's user avatar
  • 41.1k
25 votes
7 answers
11k views

Is power consumed from battery to run the phone when charging?

I want to download torrents while keeping the device plugged to charge. My device is made by Samsung. Is the power consumed from charger, or battery, to power the device when charging? Will my ...
q126y's user avatar
  • 359
22 votes
3 answers
8k views

When should I start charging my Lithium battery?

The comments in this question say that I shouldn't wait until low battery charge level before I charge, because that reduces battery life (this is contrary to my understanding before that the faster ...
Fitri's user avatar
  • 2,369
20 votes
3 answers
48k views

Automatically limit (stop) battery charging at a given percentage

Device : Moto X Play ( Rooted, Stock, Android 6.0.1, msm8916 Board, XT1562) Why do I want to limit charging ? ( Let's leave out whether my reasons are valid or not and accept that I want to, if you ...
beeshyams's user avatar
  • 41.1k
10 votes
1 answer
26k views

Fast Charging by Qualcomm 3.0- impact on battery?

I am thinking of buying HTC one A9 My only concern is with fast charging . I have read this thread How does fast charging work? and understood the downside is mainly on battery life. Accepted answer ...
AndroidNovice's user avatar
7 votes
2 answers
6k views

How can I tell what is really draining my battery?

I know that by going to Settings > About Phone > Battery Use, I can get some idea of the applications that are using up the most of my battery. I see things like "Cell standby", "Phone idle", ...
NT3RP's user avatar
  • 527
16 votes
2 answers
33k views

How does fast-charge work?

How does Fast Charge work? Does it actually charge your device faster, and if so, Is there a downside to using it?
user avatar
12 votes
3 answers
17k views

How frequently is it okay to let the battery discharge fully or as low as possible?

I know that atleast once or twice a month a full battery drain and then a 100% charge helps increase the battery life and also gives more accurate battery readings. I was wondering, how frequently is ...
Nirmik's user avatar
  • 511
33 votes
3 answers
110k views

Do I have to charge my phone before I use it the first time?

When I got my last phone, a Sony Ericsson k850i, I was recommended to charge it fully once before I even turned it on. Does this apply today as well, for my coming HTC Desire HD? Why was I recommended ...
Zolomon's user avatar
  • 455
22 votes
3 answers
84k views

How can I find out what causes "Android OS" to consume battery?

The issue is that I see a high percentage on the "Android OS" item in the Battery Usage, and I want to find out what is causing it. But let me say that I'm interested in diagnostics techniques and ...
Iravanchi's user avatar
  • 413
2 votes
1 answer
2k views

Battery capacity wear-down, and its relationship to charging practices

As an Android user with many devices I'm usually not very concerned about battery, but Nexus 6P with Snapdragon 810 is somewhat notorious for its short battery life, so it makes me start to actually ...
Andy Yan's user avatar
  • 9,539
32 votes
5 answers
139k views

How to limit charging to a user defined limit? [duplicate]

My UleFone Armor 2 has a 4700mAh battery and I would like to limit the charging to 60% to reduce battery aging. The batteries in most of the phones are not user-replaceable and I am worried that a ...
neverMind9's user avatar
27 votes
4 answers
29k views

What is USB debugging? Can I keep it ON forever?

Sometimes I need to transfer some music from my PC to my Galaxy S2 and must always activate USB debugging. Then I think, can I keep it ON forever? I mean, Keep it ON for ever can give me a problem (...
Acaz Souza's user avatar
14 votes
4 answers
59k views

2G versus 3G: Does it really save battery?

I often hear the recommendation that fixing your device to 2G saves a lot of juice compared to using 3G. Is that true? Or is it really a myth?
Izzy's user avatar
  • 91.2k
21 votes
1 answer
28k views

Battery percentages per app nowhere near total

when I look at my Nexus 5 with android 5.1. battery screen, I can see something like this: Screenshots (click images for larger variants) Sum of all per-app percentages in list is 10. However as ...
rouen's user avatar
  • 311
14 votes
2 answers
47k views

How do I recalibrate the battery of my phone?

After a year using my phone, I noticed the battery drains too fast, but after shutting down I manage to make it work again for a couple of minutes before it shuts down automatically. I read that to ...
DeLiK's user avatar
  • 502
9 votes
1 answer
19k views

Is there an efficient way to calibrate the battery than using some apps?

Is there an efficient way to calibrate the battery of my tablet in order to prove or disprove the very low battery backup than using some Apps.? The context is that my tablet is giving a very low ...
RinoTom's user avatar
  • 193
5 votes
2 answers
10k views

Why is "mdnsd" draining my battery and how to stop it?

This process (mdnsd) had been draining my battery for a few weeks. I have not been able to find a solution after a lot of search. I don't have any drone app, Facebook app or Firefox, although it's ...
Damaru's user avatar
  • 51
0 votes
4 answers
7k views

App showing battery charge based on its voltage

I have a xt894 with Android 4.3. I bought an extended 3800mAh battery (Mugen) but the droid doesnt recognize it properly. I tested a couple of battery manager apps, but I dint find what I am ...
elect's user avatar
  • 115
54 votes
4 answers
27k views

Do bright wallpapers spend more battery than dark ones?

I started wondering about this when I realized most websites I visit have white backgrounds, and I know that the screen is usually responsible for most of the battery usage. Since I can't change the ...
Malabarba's user avatar
  • 2,603
39 votes
3 answers
58k views

How can I avoid the battery charging when connected via USB?

I'm using my Samsung Galaxy S2 for development so I regularly plug it while it's not fully charged, and my phone starts charging over USB. I think this (charging while in use) can affect battery life (...
AsTeR's user avatar
  • 491
15 votes
7 answers
110k views

Will constantly having Bluetooth on drain my battery too fast?

I'm thinking about making an app which will require Bluetooth to be available at all times. However, if this reduces battery charge life significantly, then that's kind of a show stopper. Can anyone ...
John Berryman's user avatar
7 votes
5 answers
19k views

How to break in a new cell phone battery?

Whats the best way to break in a new cell phone battery? I just got a replacement battery for my Motorola Droid and so far through 2 cycles it is barely lasting a few hours.
user avatar
5 votes
1 answer
4k views

Auto sync only when connected to a specific wifi network

I am getting rather low battery life when using auto-sync on 3G. I have wifi in college and at home, so I'm looking for a way to enable auto sync only when connected to those 2 specific wifi networks.
Sumesh's user avatar
  • 953
4 votes
2 answers
13k views

How to tame "Phone Idle" battery drain on unrooted device?

I use AccuBattery and Kaspersky Battery Life to measure energy consumption. Kaspersky Battery Life shows, that all the tasks use minimal energy. AccuBattery Pro shows, that phone uses 5-10 mAh. This ...
plaidshirt's user avatar
2 votes
2 answers
382 views

How to prevent brightness when battery reaches high?

I leave my phone (Samsung Galaxy 4 GT-I9506, Android 5.0.1 lollipop) charging on my table when going to sleep. It reaches full after some hours often. It is so annoying when the display becomes bright ...
Léo Léopold Hertz 준영's user avatar
2 votes
1 answer
4k views

Is using chargers of phone not meant for it harmful to the battery? [duplicate]

Possible Duplicate: Is my phone liable to explode if I charge it with a charger that came with a different phone? Are Android chargers universal in terms of power (Voltage, amperage)? As in, I ...
stealthmode's user avatar
1 vote
3 answers
5k views

Are battery monitors accurate ?

I use GSAM battery monitor. i have flashed a few roms, I get this reading: ~91% battery. 460ma current consumption with regular use(full brightness). 3:40 hours time left(avg last 5 minutes). ...
hulkingtickets's user avatar
0 votes
0 answers
604 views

Battery conservation? [duplicate]

Possible Duplicate: What can I do to increase battery life on my Android phone? What are some general ways to improve the battery life of my phone?
Bryan Denny's user avatar
  • 21.9k
85 votes
4 answers
311k views

Battery Life and First Time Charging on Li-ion Batteries. Myth? [closed]

"Ok you bought a brand new mobile phone with brand new battery, after checking its working ok kindly switch it off and charge it fully (100%) then start using it. IT WILL INCREASE YOUR BATTERY LIFE.", ...
user54879's user avatar
  • 925
25 votes
2 answers
31k views

Does 'poor' reception deplete the battery quicker?

In the area where I live I sometimes have trouble with reception. The Internet stops working for me or it takes time to load pages. The phone tries and tries to connect. It seems to me that when this ...
Radek's user avatar
  • 1,679
24 votes
3 answers
37k views

What's the meaning of signal strength colors in battery usage screens?

The battery usage screen has an indicator for "Signal strength" that, instead of being blue/black like WiFi, has many colors: green, gray, yellow. What's their meaning?
michelemarcon's user avatar
19 votes
4 answers
22k views

Google Services is killing my battery by keeping phone awake

In the last few days my Galaxy S3 has gone from lasting 12-13 hours to about 6 hours. On checking the battery monitor it seems to suggest that the phone is constantly staying awake and that Google ...
Dean's user avatar
  • 483
14 votes
1 answer
18k views

Why would I automatically share usage and diagnostics data?

In my Android settings (Version 6) I have the option to activate "to automatically share usage and diagnostics data". I suppose that this will help certain developpers - and of course Google - by ...
Martin Zaske's user avatar
10 votes
2 answers
5k views

Is there any study on how which services/sensors consume the battery?

I am looking for some study/comparison on how battery-consuming are specific services/sensors (3G, Wifi, GPS, Bluetooth, accelerometer) in Android devices. I know that the exact answer might differ ...
syntagma's user avatar
  • 217
9 votes
1 answer
7k views

Looking for a consistent answer about battery calibration

This forum is full of questions about battery calibration. The thing is, that either I'm blind or one answers contradicts others. In particular: For example forums says, that battery should be ...
trejder's user avatar
  • 2,557
7 votes
2 answers
3k views

Is there a way to see which apps are using GCM?

I'm interested to know how many of the apps I have installed are using GCM. Is there a way to find out?
cnst's user avatar
  • 859
7 votes
4 answers
50k views

mm-qcamera-daemon causing massive battery drain

Recently, mm-qcamera-daemon has been causing massive battery drain on my Nexus 5, and making it become rather warm. At the same time, the camera appears to be locked, meaning opening the default ...
Huey's user avatar
  • 1,106
7 votes
4 answers
12k views

Android Antivirus Software (solution and battery life relevance)

Is there a security solution for Android that's vastly regarded as "the best" one at the moment or is it like in the PC world where there are 3-4 which are "the best"? Also, what should I expect to ...
6 votes
3 answers
12k views

Nexus 7 charges very slowly, even with 2 amp chargers

I'm facing a rather painful issue with the battery life/charging issue with my Nexus 7 (4.2.2) When idle and plugged into my 2A charger with the stock USB cable, it charges VERY slowly. I'd say under ...
DeepSpace101's user avatar
6 votes
1 answer
16k views

Google Services battery usage

I recently updated to the 10.1 M snapshot of CyanogenMod for my Sprint Galaxy S3 (d2spr). Ever since I did the update, I have been seeing crazy high battery usage from Google Services. I have tried ...
Ryan's user avatar
  • 148
5 votes
3 answers
6k views

Does switching user accounts in Lollipop affect battery life or performance?

I recently updated my Moto G2 to Android Lollipop via OTA update. I've successfully installed the update(around 500mb i guess). I saw the new feature of adding new Guest and New user acccounts just ...
Lucky's user avatar
  • 3,331
5 votes
1 answer
7k views

Android 6.0 drains my Nexus 5 battery within an hour

So. This morning I received the OTA update for Android 6.0 on my Nexus 5. Previously had no problems with battery usage, but after installing the update my battery is drained within an hour, without ...
Tohnmeister's user avatar
4 votes
1 answer
4k views

Why is a suspicious program draining my battery with GPS usage? [duplicate]

Phone : nexus 5 version 2013 Android version : 6.0 Kernel version : 3.4.0-g2aa165e Build number : MRA58N For the last few days, 10118 has been draining my phone's battery. It drains battery by using ...
user avatar
4 votes
2 answers
2k views

How do I stop my device from sending my location to Google every second, even when the location setting is off?

How do I stop my device from sending my location to Google every second, even when the location setting is off? (Which is illegal because I declined Google from taking my location data because I ...
desbest's user avatar
  • 111